package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController {
    @Autowired
   private DishFlavorService dishFlavorService;

    @Autowired
    DishService dishService;

    @Autowired
    CategoryService categoryService;

    /**
     * 新增菜品
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody DishDto dishDto){
        log.info(dishDto.toString());

        dishService.saveWithFlavor(dishDto);
        return R.success("添加成功");
    }

    /**
     * 菜品信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */

    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
//构造分页构造器
        Page<Dish> pageInfo = new Page(page,pageSize);
        Page<DishDto> dishDtoPage = new Page<>();
//分页查询
        LambdaQueryWrapper<Dish> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        lambdaQueryWrapper.like(name != null,Dish::getName,name);
        lambdaQueryWrapper.orderByAsc(Dish::getUpdateTime);
dishService.page(pageInfo,lambdaQueryWrapper);

//对象拷贝
//除去Page中的records属性
        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");
//        对records属性进行处理
        List<Dish> records = pageInfo.getRecords();
        List<DishDto> list = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item,dishDto);
            Long categoryId = item.getCategoryId();
//根据id查询分类对象
            Category category = categoryService.getById(categoryId);
        if (category != null){
            String categoryName = category.getName();
            dishDto.setCategoryName(categoryName);
        }
        return dishDto;
        }).collect(Collectors.toList());
        dishDtoPage.setRecords(list);
        return R.success(dishDtoPage);
    }

//    /**
//     * 根据条件查询对应的菜品数据
//     *
//     * @param dish
//     * @return
//     */
//    @GetMapping("/list")
//    public R<List<Dish>> list(Dish dish) {
//        LambdaQueryWrapper<Dish> lambdaQueryWrapper = new LambdaQueryWrapper<>();
//        lambdaQueryWrapper.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());
//        lambdaQueryWrapper.eq(Dish::getStatus, 1);
//        //添加排序条件
//        lambdaQueryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
//        List<Dish> list = dishService.list(lambdaQueryWrapper);
//        return R.success(list);
//    }


    /**
     * 根据条件查询对应的菜品数据
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){
        LambdaQueryWrapper<Dish> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        lambdaQueryWrapper.eq(dish.getCategoryId() != null,Dish::getCategoryId,dish.getCategoryId());
        lambdaQueryWrapper.eq(Dish::getStatus,1);
        //添加排序条件
        lambdaQueryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        List<Dish> list = dishService.list(lambdaQueryWrapper);

        List<DishDto> dishDtoList =  list.stream().map((item) ->{
            DishDto dishDto = new DishDto();
            BeanUtils.copyProperties(item,dishDto);
            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);
            if (category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }

            //当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lam = new LambdaQueryWrapper<>();
            lam.eq(DishFlavor::getDishId,dishId);
            List<DishFlavor> list1 = dishFlavorService.list(lam);
            dishDto.setFlavors(list1);
return dishDto;
        }).collect(Collectors.toList());
        return R.success(dishDtoList);
    }



}
